Germination Characteristics of Cucumber Influenced by Plant Growth–promoting Rhizobacteria

• Published in: International journal of vegetable science Vol. 22; no. 1; pp. 66 - 75
• Main Authors: Mangmang, Jonathan S, Deaker, Rosalind, Rogers, Gordon
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 02-01-2016; Taylor & Francis Ltd
• Subjects: Azospirillum; Azospirillum brasilense; Burkholderia phytofirmans; cucumbers; Cucumis sativus; Germination; Herbaspirillum; Herbivores; host plants; PGPR; Plant growth; plant growth-promoting rhizobacteria; rhizosphere bacteria; roots; seed inoculation; seedling emergence; vigor
• ISSN: 1931-5279; 1931-5260; 1931-5279
• DOI: 10.1080/19315260.2014.938850

Plant growth–promoting rhizobacteria (PGPR) represent a wide genera of rhizospheric bacteria that, when introduced in association with the host plant at optimum concentration, can enhance plant growth. Experiments were conducted to determine the germination response of cucumber (Cucumis sativus L.) to PGPR inoculation. Seed were inoculated with strains of Azospirillum brasilense Sp7, Sp7-S, and Sp245, Herbaspirillum seropedicea , and Burkholderia phytofirmans PsJN ᵀ. Germination was increased by up to 9% by strains of A. brasilense Sp7 and Sp245 and H. seropedicea . All PGPR strains consistently enhanced the germination vigor index; plants produced longer and heavier roots. These PGPR benefit cucumber germination.